{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["GENE"], "input": "However , serial passages of fetal lamb kidney ( FLK ) cells , which are sensitive to infection with BLV , after transient transfection revealed that mutation of a second tyrosine residue in the N - terminal motif completely prevented the propagation of the virus ."}
{"GENE": []}